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William Porter
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Profile
William A. Porter is the founder of E*trade Financial Holdings LLC, founded in 1982.
Mr. Porter was the founder of E*TRADE Financial Corp., founded in 1982, and held the title of Chairman-Emeritus from 1982 to 2005.
Mr. Porter is also the founder of Adirondack Trading Partners LLC.
Mr. Porter was a Director at International Securities Exchange, Inc. from 1997 to 2006.
Mr. Porter was a Director at International Securities Exchange Holdings, Inc. Mr. Porter completed undergraduate education at Adams State College (Colorado).
Mr. Porter completed graduate education at Massachusetts Institute of Technology.
Mr. Porter completed graduate education at the University of Kansas.
Former positions of William Porter
| Companies | Position | End |
|---|---|---|
Adirondack Trading Partners LLC | Founder | 15/10/2015 |
International Securities Exchange Holdings, Inc.
 International Securities Exchange Holdings, Inc. Investment Banks/BrokersFinance Operates and regulates a registered national securities exchange | Director/Board Member | 08/05/2007 |
International Securities Exchange, Inc.
 International Securities Exchange, Inc. Miscellaneous Commercial ServicesCommercial Services Operates electronic exchange for options trading | Director/Board Member | 05/09/2006 |
| E*TRADE FINANCIAL, LLC | Founder | 01/01/2005 |
E*trade Financial Holdings LLC
 E*trade Financial Holdings LLC Financial ConglomeratesFinance Provides investment and securities trading services | Founder | - |
Training of William Porter
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
75
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
E*TRADE Financial Corp.
 E*TRADE Financial Corp. Investment Banks/BrokersFinance Provides online stock brokerage and investing services | Finance |
International Securities Exchange, Inc.
International Securities Exchange, Inc. Miscellaneous Commercial ServicesCommercial Services Operates electronic exchange for options trading | Commercial Services |
Adirondack Trading Partners LLC | |
Adams State College (Colorado)
 Adams State College (Colorado) Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Massachusetts Institute of Technology
 Massachusetts Institute of Technology Finance/Rental/LeasingFinance Functions as a College/University | Finance |
University of Kansas
 University of Kansas Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
International Securities Exchange Holdings, Inc.
International Securities Exchange Holdings, Inc. Investment Banks/BrokersFinance Operates and regulates a registered national securities exchange | Finance |
E*trade Financial Holdings LLC
E*trade Financial Holdings LLC Financial ConglomeratesFinance Provides investment and securities trading services | Finance |
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